[Xapian-devel] Learning to rank

Parth Gupta parthg.88 at gmail.com
Sun Mar 25 17:19:09 BST 2012


Hello Pankaj,

I think based on the updated info of the LTR project (below link) you
should be able to think specifically about your idea and if you want you
can discuss it here or on IRC about the fine details involved.

http://trac.xapian.org/wiki/GSoCProjectIdeas#Project:LearningtoRank

Moreover, for the general details you may want to refer
http://trac.xapian.org/wiki/GSoC2012

Thanks for your interest.

Parth.




On Sun, Mar 25, 2012 at 2:27 AM, pankaj singhal <pankajsinghal at ieee.org>wrote:

> Dear Sir,
>                  I am Pankaj Singhal from Jaipur, India. I am very much
> interested and strongly looking forward in getting involved in this project
> Learning-to-Rank.
>
> My previous experience in this field is good. Last semester I did a
> similar job of ranking the URLs of the given huge dataset based on their
> attribute values. The dataset consisted hundreds of thousands of URLs and
> each url consisted of around 33000 features and a binary class label with
> +1 OR -1 value. I applied the Decision Tree induction(GINI INDEX) Approach
> for filtering out the URLs and then applying a RANKSUM[1] metric, which
> uses weighted sum approach, to rank the URLs accordingly.
>
> The current implementation involves firstly the unsupervised ranking of a
> query and then applying a supervised learning algorithm, SVM, on the first
> 'n' documents retrieved.
> A similar approach can be incorporated while extending the problem of
> ranking with a better supervised learning algorithm and probabilistic model
> viz. Bayesian Belief Networks i.e. it can be applied after fetching 'n'
> documents from either of the two approaches, unsupervised ranking or SVM
> ranking.
>
> Incorporating pairwise approach would also be a good idea, there are
> various algorithms available.
>
>
>
>
> [1] - Rank-Order Weighting of Web Attributes for Website Evaluation -
> Mehri Saeid, Abdul Azim Abd Ghani, and Hasan Selamat
>
>
> regards,
>
> --
> Pankaj Singhal
> III Year, CSE
> The LNMIIT, Jaipur, India.
>
> Mob: +918875053936
>
>
>
>
> _______________________________________________
> Xapian-devel mailing list
> Xapian-devel at lists.xapian.org
> http://lists.xapian.org/mailman/listinfo/xapian-devel
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.xapian.org/pipermail/xapian-devel/attachments/20120325/ffd2e624/attachment-0001.htm>


More information about the Xapian-devel mailing list